Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11 February 2011 – 27 April 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to OECD and EC guidelines and in compliance with GLP principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report Date:
2011

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
(Official Journal of the European Union no. L142, May 31, 2008)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): E-Y110
- Test substance storage: At room temperature protected from light
- Stability under storage conditions: Stable
- Description: Orange powder
- Batch: MB-1
- Expiry date: 23 December 2015

Results and discussion

Surface tension
Surface tension:
73.7 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Any other information on results incl. tables

The calibration factor (Φb) was calculated to be 1.01.

Details on the results of the test on the determination of the surface tension of the test solution are given in the table below:

Measurement

 

Time passed

[minutes]

 

Surface tension

[mN/m]

individual

 

mean

 

mean multiplied by

Φband Harkins-Jordan

corrected value

 

1

2

3

4

5

6

 

 

20

21

22

23

24

25

 

73.9

73.2

73.1

73.0

72.8

72.9

 

73.0 1

 

 

73.7

 

1 Mean calculated from measurements 2 to 6, after equilibrium was reached.

Applicant's summary and conclusion

Conclusions:
The OECD harmonized ring method was applied for the determination of the surface tension of E-Y110. The surface tension of a test solution at a concentration of 1 g/l and at 20°C was 73.7 mN/m. As this value is well above the cut-off value for surface active materials (< 60 mN/m), the test substance is considered not to be surface active.